Dust-guard for wheels.



R. STOCK.

DUST GUARD FOR WHEELS.

APPLICATION TILED AUG. 30, 1910.

1 ,048, 369 Patented Dec. 24, 1912.

ROBERT STOCK, OF BERLIN, GERMANY.

DUST-GUARD FOR WHEELS.

Specification of Letters Patent.

Patented Dec. 2 1, 1912.

Application filed August 30, 1910. Serial No. 579,723.

To all whom it may concern:

Be it known that I, Ronnlrr STOCK, a subect of the German Emperor, and a resident of Berlin, Germany, have invented certain flectors of a novel construction and arrangement are used in conjunction with the gearing.

arrange a stationary cover plate I I will now proceed to describe one form of my invention w1th reference to the accompanying drawing, which is partly an end elevation and partly a cross-section of a motor plow fitted with my improved guard. The drive wheels 1 are provided with hubs 2 mounted to turn on the axles Each drive wheel is mounted independently, and has an internally toothed ring a in engage ment with a driving pinion 5 operated from a suitable motor 5. On the outside of the ring 4 is located a rotary cover plate (3 secured to the wheel 1, while-on the inside I secured to the axle 3, which plates, to a considerable extent, prevent the entrance of dust and other foreign matter between the teeth of the rings 4 and of the pinions 5. plate 7 is provided with an outwardly pro;

jected flange-8 perpendicular to the plane.

of said plate, and to this flange is secured a packing ring 9 of felt or the like (preferably within a holder 9 of U-shaped crosssection) which engages the outer periphery of the ring 4 and thus better protects the gearing on the inside.

The arrangement so far described in detail has been found insuflicient to shield the gearing as perfectly as is desirable in practice. According to my present invention, an annular deflector 11 has been provided on the inner side of the wheel 1, between the axle 3 and the rim 10, preferably secured at the outer periphery of the toothed ring 4 and of the cover plate 6, the outer edge of said plate being spaced from the rim The inner 10 so -hat openingsare left between the rim and said plate, as shown in the drawing at the right. This rotary deflector is mterposed between the rim 10 and the joint of the plate 7 (and its packing ring 9) with the ring 4-, so that any stones, lumps of soil, etc. carried up by the rim 10 and then dropping from it cannot reach said joint. As shown the deflector 11 is conical, flaring toward the inside.

If a vertical line be drawn through the .inner edge of the rim 10 in the drawing (which line would indicate the plane in which said edge is contained), the deflector 11 will be seen, obviously, to lie partly to one side (the inside, or left) and partly to the other side (the outside, or right) of such line or plane, thus making it clear that any matter dropping from the inner edge of the rim 10 must fall on the deflector, to then slide outward (to the right) and escape between the spokes of the wheel.

It will be understood that in speaking of left and right I am referring exclusively to the wheel shown in section in the drawing, that is to say, the right-hand wheel.

Any stones or other articles dropping from the rim 10 on the conical surface of the deflector 11 will slide down outwardly,

that is to say, towar l the free end of the axle ll, passing out through the openings left between the rim 10 and the periphery of the cover plate 6.

Within the deflector 11 is located an opposing stationary deflector 19, at an angle to the deflector 11; preferably the deflector 12 is secured to the'flange 8 and flares outwardcconically. The free outer edge of the deflector 12 is arranged closeto the inner surface of the deflector 1l,'leaving only a small gap i3 through which lumps of soil cannot pass.

Any dust passing through the gap 13 and settling on the ()lltOY'StlIftlCC of the ring 1' will fall off said surface at the bottom of 'tlieavhecl, thus drop ing on the inclined to said cover and increasin in the claims, and I therefore do not wish to restrict myself to the specific construction shown in the drawing.

I claim as my invention: 1. A .wheel provided with a rim and with gearing located between the said rim and the center of the Wheel, a stationary cover for gearing located between the said rilnQr nd the center of the wheel, a stationary cover for said gearing, an annular deflector secured to said cover and increasing 1n d1ame-' ter from the cover to the free edge of the deflector, said deflector surrounding a portion of said gearing, a rotary cover plate for said gearing, the outer edge of said rotary plate being spaced from the rim so as to form openings for the escape of stones and other foreign matter, and anotherannular deflector, held to rotate with the wheel and located between the wheel rim and the stationary deflector, said rotary deflector flaring from a point adjacent'to the free edge of the stationary deflector, in a direction opposite to the flare of said static-nary deflector, so as to guide any matter falling from the rim on the outer surface of the r0.-

tary deflector, to the openings intervening between the rim and the outer edge of the rotary cover plate.-

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

ROBERT STOCK.

Witnesses HENRY HAsPnR, ARTHUR ScHRoEDER.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

"1 l Washington, D. 0. 

